# Copyright 2022 Garena Online Private Limited.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
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"""Type definitions."""
from typing import Callable, NamedTuple, Union

import jax.numpy as jnp
import numpy as np

Array = Union[np.ndarray, jnp.ndarray]
Forwardable = Callable


class ActorOutput(NamedTuple):
    """Actor output parsed from the dataset."""

    observation: Array
    reward: Array
    is_first: Array
    is_last: Array
    action: Array
